A pig house ventilation device
By integrating exhaust, cooling, and cleaning mechanisms, the pigsty ventilation system solves the problems of dust accumulation and insufficient energy efficiency in pigsty ventilation equipment, achieving efficient self-cleaning and cooling effects, improving ventilation efficiency, reducing operation and maintenance costs, and increasing ventilation effect and air volume.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU JINSHI AGRICULTURE & ANIMAL HUSBANDRY TECHNOLOGY CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-26
AI Technical Summary
Existing ventilation equipment for pigsties suffers from problems such as dust accumulation, disconnect between cooling and cleaning, and insufficient energy efficiency. Traditional fans are prone to accumulating dust, and spray systems installed independently cannot effectively clean the area. Furthermore, a single motor drive makes it difficult to balance high air volume with energy saving.
A ventilation device for pigsties was designed, integrating an exhaust mechanism and a cooling and cleaning mechanism. Spray nozzles are located on both sides of the exhaust mechanism, with the water outlet direction opposite to the fan airflow to achieve self-cleaning. The drive motor increases the fan speed by meshing a large-radius first drive wheel with a small-radius second drive wheel. The spray nozzles have atomization and direct spray functions for cleaning the fan blades and filter screen.
It achieves integrated cleaning and cooling during operation, improves ventilation efficiency, reduces operation and maintenance costs, increases air volume, and maintains motor efficiency.
Smart Images

Figure CN224402506U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pig farming technology, specifically to a pigsty ventilation device. Background Technology
[0002] In large-scale pig farming, environmental control in pigsties is a key factor affecting production efficiency. Existing ventilation equipment generally suffers from the following deficiencies:
[0003] Dust accumulation problem: After long-term operation, dust easily accumulates on the filter screen and fan blades of traditional fans, resulting in reduced ventilation efficiency and frequent manual cleaning, which increases operation and maintenance costs.
[0004] Cooling and cleaning are disconnected: Spray systems are often installed independently and run in the same direction as the ventilation airflow. They can only achieve basic cooling and cannot reverse the flow to flush impurities from the fan blades and filters, leading to dirt accumulation.
[0005] Insufficient energy efficiency: When a single motor drives a fan, the speed is often limited to reduce noise, making it difficult to balance high airflow and energy-saving requirements.
[0006] Therefore, there is an urgent need for a multifunctional device that integrates ventilation, self-cleaning, and efficient cooling. Utility Model Content
[0007] Therefore, this application provides a pigsty ventilation device to solve the problems existing in the prior art.
[0008] To achieve the above objectives, this application provides the following technical solution:
[0009] A pigsty ventilation device, comprising:
[0010] The cylinder has an mounting bracket installed on its upper side, a filter screen installed at the air inlet of the cylinder, and an exhaust mechanism installed inside the cylinder to drive airflow in the pigsty. Cooling and cleaning mechanisms installed inside the cylinder are set on both sides of the exhaust mechanism to clean the dust in the cylinder and filter screen, and to cool the pigsty. The water outlet of the cooling and cleaning mechanism is opposite to the airflow generated by the exhaust mechanism.
[0011] Optionally, the exhaust mechanism includes a drive motor, the output end of which is equipped with a first drive wheel, and a second drive wheel is engaged with one side of the first drive wheel. Both the second drive wheel and the first drive wheel are installed inside the protective box.
[0012] Optionally, the protective box is fixedly installed on the outside of the cooling and cleaning mechanism near the filter screen.
[0013] Optionally, the drive motor is located on the outside of the cylinder.
[0014] Optionally, the radius of the first drive wheel is larger than the radius of the second drive wheel.
[0015] Optionally, the cooling and cleaning mechanism includes a water inlet connected to a water pump. One end of the water inlet is fitted with a water guide frame fixed inside the cylinder, and the water guide frame and the water inlet are connected. Several nozzles are provided on the outside of the water guide frame.
[0016] Optionally, the nozzle has both atomizing and direct-injection nozzles.
[0017] Compared with the prior art, this application has at least the following beneficial effects:
[0018] 1. Integrated cleaning and cooling: The nozzles of the cooling and cleaning mechanism are located on both sides of the exhaust mechanism, with the water outlet direction opposite to the fan airflow. The reverse water pressure directly washes away the dirt attached to the fan blades, while the other side sprays to clean the filter screen, achieving "self-cleaning during operation".
[0019] 2. The drive motor increases the fan speed and air volume by meshing the large-radius first drive wheel with the small-radius second drive wheel, while the motor power remains unchanged. The motor is placed on the outside of the cylinder to prevent spray water from seeping in. Attached Figure Description
[0020] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).
[0021] Figure 1 This application provides an overall structural schematic diagram of a pigsty ventilation device.
[0022] Figure 2 This application provides an overall cross-sectional structural schematic diagram of a pigsty ventilation device;
[0023] Figure 3 A schematic cross-sectional view of the connection between the first drive wheel and the second drive wheel of a pigsty ventilation device provided in this application;
[0024] Figure 4 This is a schematic diagram of the connection between the nozzle and the water supply frame of a pigsty ventilation device provided in this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Cylinder body; 2. Mounting bracket; 3. Filter screen; 4. Exhaust mechanism; 401. Drive motor; 402. Protective box; 403. First drive wheel; 404. Second drive wheel; 405. Fan; 5. Cooling and cleaning mechanism; 501. Water inlet; 502. Water passage frame; 503. Spray head. Detailed Implementation
[0027] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] This utility model provides a pigsty ventilation device, including a cylinder 1. A mounting frame 2 is installed on the upper side of the cylinder 1 for installation on the ceiling or a corresponding fixed frame. A filter screen 3 is installed at the air inlet of the cylinder 1. An exhaust mechanism 4 is installed inside the cylinder 1, allowing air to be discharged from one side of the cylinder 1, thereby driving air circulation in the pigsty and achieving the effect of ventilation. Cooling and cleaning mechanisms 5 are installed inside the cylinder 1 on both sides of the exhaust mechanism 4 to clean the dust in the cylinder 1 and the filter screen 3, and to cool the pigsty. The water outlet of the cooling and cleaning mechanism 5 is opposite to the airflow generated by the exhaust mechanism 4, so that the water sprayed by the cooling and cleaning mechanism 5 can clean the exhaust mechanism 4, and the filter screen 3 can also be cleaned by the other cooling and cleaning mechanism 5.
[0029] The exhaust mechanism 4 includes a drive motor 401. A first drive wheel 403 is installed at the output end of the drive motor 401. A second drive wheel 404 is meshed on one side of the first drive wheel 403. Both the second drive wheel 404 and the first drive wheel 403 are installed inside the protective box 402. The protective box 402 is fixedly installed on the outside of the cooling and cleaning mechanism 5 near the filter screen 3, so that after the drive motor 401 is started, it can drive the first drive wheel 403 to rotate, thereby driving the fan 405 fixed to the second drive wheel 404 to rotate.
[0030] The drive motor 401 is located on the outside of the cylinder 1 to prevent water discharged from the cooling cleaning mechanism 5 from entering the drive motor 401;
[0031] The radius of the first drive wheel 403 is larger than that of the second drive wheel 404, so that when the first drive wheel 403 drives the second drive wheel 404 to rotate, the angular velocity of the second drive wheel 404 can be greater than that of the first drive wheel 403, thereby increasing the speed of the fan 405 and improving the ventilation effect.
[0032] The cooling and cleaning mechanism 5 includes a water inlet 501, which is connected to a water pump to allow water to enter. One end of the water inlet 501 is fitted with a water-passing frame 502 fixed inside the cylinder 1, and the water-passing frame 502 and the water inlet 501 are connected, allowing the water introduced into the water inlet 501 to enter the water-passing frame 502. Several nozzles 503 are provided on the outside of the water-passing frame 502. The nozzles 503 have both atomizing and direct spraying types. The direct spraying nozzles can generate a powerful water jet to clean the impurities attached to the outside of the fan 405 and the filter screen 3. The atomizing nozzles are responsible for generating atomized water, which is then atomized by the fan 405 and discharged into the pigsty for cooling.
[0033] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.
Claims
1. A ventilation device for pigsties, characterized in that, include: A cylinder (1) is provided with an mounting bracket (2) on its upper side. A filter screen (3) is installed at the air inlet of the cylinder (1). An exhaust mechanism (4) is installed inside the cylinder (1) to drive the air flow in the pig house. Cooling and cleaning mechanisms (5) installed inside the cylinder (1) are provided on both sides of the exhaust mechanism (4) to clean the dust in the cylinder (1) and the filter screen (3) and to cool the pig house. The outlet of the cooling and cleaning mechanism (5) is opposite to the airflow generated by the exhaust mechanism (4).
2. The pigsty ventilation device according to claim 1, characterized in that, The exhaust mechanism (4) includes a drive motor (401), the output end of which is equipped with a first drive wheel (403), and a second drive wheel (404) is meshed on one side of the first drive wheel (403). The second drive wheel (404) and the first drive wheel (403) are both installed inside the protective box (402).
3. A pigsty ventilation device according to claim 2, characterized in that, The protective box (402) is fixedly installed on the outside of the cooling and cleaning mechanism (5) near the filter screen (3).
4. A pigsty ventilation device according to claim 2, characterized in that, The drive motor (401) is located on the outside of the cylinder (1).
5. A pigsty ventilation device according to claim 2, characterized in that, The radius of the first drive wheel (403) is larger than the radius of the second drive wheel (404).
6. A pigsty ventilation device according to claim 1, characterized in that, The cooling and cleaning mechanism (5) includes a water inlet (501), which is connected to a water pump. One end of the water inlet (501) is equipped with a water guide frame (502) fixed inside the cylinder (1), and the water guide frame (502) and the water inlet (501) are connected. Several nozzles (503) are provided on the outside of the water guide frame (502).
7. A pigsty ventilation device according to claim 6, characterized in that, The nozzle (503) has two types of nozzles: atomizing and direct injection.